I. ˈd(y)üplə̇kə̇]t, -lēk- sometimes -ləˌkā]; usu ]d.+V adjective
Etymology: Middle English, from Latin duplicatus, past participle of duplicare to double, from duplic-, duplex double, twofold — more at duplex
1. : consisting of or existing in two corresponding or identical parts or examples
the firm always made out duplicate invoices, one for its own records and one for the customer
2. : being exactly the same as one or more others of its kind
in eleven years he has not made a duplicate prayer — New York Times
make six duplicate copies of the memo
3. : of, relating to, or being a card game in which all players play identical hands in order to allow a comparison of scores — compare duplicate bridge
II. noun
( -s )
1. : either of two things that exactly resemble or correspond to each other — usually used of a copy or transcript made at the same time or by the same pattern as its original
2. : something that is like another thing in content or appearance but is not derived from the same source or made in the same manner : counterpart
doll carriages that are duplicates of baby carriages
specifically : an additional copy of a book, periodical, or pamphlet already in a library
3. : a duplicate game ; specifically : duplicate bridge
4. law : an original instrument repeated : a document the same as another in essential particulars and differing from a copy in that it is valid as an original
5.
a. : a photographic negative prepared from another negative by printing first a master positive from which the later negative is printed
b. : a positive print either black and white or color that is made by reversal development of a print from a positive
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- in duplicate
III. -ləˌkāt, usu -ād.+V\ verb
( -ed/-ing/-s )
transitive verb
1. : to make double or twofold
the walls should be duplicated … in order to have a second line of defense if the outer wall is breached — J.A.Steers
2. : to be or make a duplicate, copy, or transcript of
the furnishings duplicate those used by Washington — American Guide Series: Pennsylvania
we are totally unable, after decades of experiment, to duplicate Attic glazed pottery — W.F.Albright
small firms may duplicate their own business forms
intransitive verb
: to celebrate mass twice in a day
IV. intransitive verb
: to become duplicate : replicate
DNA in chromosomes duplicates